China Goes to Africa: a strategic move?

Entering the twenty-first century, particularly under the reign of Hu Jintao, China began to pursue an increasingly pro-active diplomacy in Africa. Most analysis on China's offensive diplomacy in Africa focuses on Beijing's thirst for energy and raw materials, and for economic profits and benefits. That is why it is often called ‘energy diplomacy’ or ‘economic diplomacy’ as if China, just like Japan in the 1980s, became another ‘economic animal’. But if one looks at the history of the PRC's foreign policy, Beijing has seldom pursued its diplomacy from purely economic considerations. Is this time any different? This article exams China's diplomacy in Africa from a strategic and political perspective such as its geo-strategic calculations, political and security ties with African countries, peacekeeping and anti-piracy efforts in the region, support for African regionalism, etc. It argues that China's diplomatic expansion in Africa, while partially driven by its need for economic growth, cannot be fully understood without taking into consideration its strategic impulse accompanying its accelerating emergence as a global power. Africa is one of China's diplomatic ‘new frontiers’ as exemplified by new Chinese leader Xi Jinping's maiden foreign trip to Africa in 2013.     

论现阶段运行状态下警察权力的社会控制

警察作用的发挥必须通过警察权力的运行来实现。现阶段警察权力运行状态呈现出多样化的状态,即复杂的国际、国内治安形势下警察权力的强化和权力的不当行使衍生警察权力异化现象等。在此状态下考察权力运行特征及内在要求,必须对警察权力加以社会控制。从内容设置和程序设置控制的法律制度控制手段、组织控制手段和文化控制手段上,探讨警察权力超越不良运行状态、努力达成社会控制构想的实现。     

Response surface methodology and improved interval analysis method-For analyzing uncertainty in accident reconstruction

Methods used to calculate intervals of accident reconstruction results are research hotspot in the word. The response surface methodology-interval analysis method (RSM-IAM) is a useful method for analyzing uncertainty of simulation results in this field, but there are two problems in this method because of the interval extension problem and inaccurate response surface models. In order to tackle these two problems, based on subinterval analysis thought and response surface methodology, an improved interval analysis method (RSM-IIAM) is proposed. In RSM-IIAM, the stepwise regression technique is used to obtain a reasonable response surface mode of the simulation model; and then, intervals of uncertain parameters are divided into several subintervals; after that, intervals of simulation results in accident reconstruction are calculated according to these subintervals. Finally, four numerical cases were given. Results showed that the RSM-IIAM is simple and high accuracy, which will be useful in analyzing uncertainty of simulation results in accident reconstruction.     

Analyzing the uncertainty of simulation results in accident reconstruction with Response Surface Methodology

This paper is focused on the uncertainty of simulation results in accident reconstruction. The Upper and Lower Bound Method (ULM) and the Finite Difference Method (FDM), which can be easily applied in this field, are introduced firstly; the Response Surface Methodology (RSM) is then introduced into this field as an alternative methodology. In RSM, a sample set is firstly generated via uniform design; secondly, experiments are conducted according to the sample set with the help of simulation methods; thirdly, a response surface model is determined through regression analysis; finally, the uncertainty of simulation results can be analyzed using a combination of the response surface model and existing uncertainty analysis methods. It is later discussed in detail how to generate a sample set, how to calculate the range of simulation results and how to analyze the parameter sensitivity in RSM. Finally, the feasibility of RSM is validated by five cases. Moreover, the applicability of RSM, ULM and FDM in analyzing the uncertainty of simulation results is studied; the phenomena that ULM and FDM can hardly work while RSM can is found in the latter two cases. After an analysis of these five cases and the number of simulation runs required for each method, both advantages and disadvantages of these uncertainty analysis methods are indicated.     

关注绿色贫困:贫困问题研究新视角

该文基于绿色贫困的内涵和特征,研究绿色贫困主要类型、形成机理.结合新时期国家扶贫战略,提出实施生态补偿、生态建设与绿色产业发展相结合的绿色贫困治理模式.     

美国反环保运动的政策与法律分析

反环保运动对美国环境政策和法律的影响颇为深远,却甚少受到国内的关注.反环保运动贯穿于环保立法、执法的始终,在二十世纪八、九十年代达到顶峰.反环保运动形成的因素包括美国三权分立的完政体制、私有产权等等.环保试图调整人与自然的关系,赋予自然类似于人的权利才是反环保运动成为一种社会势力的最根本原因所在.反环保运动使得法院在环境问题上由同情、支持态度向谨慎态度转移,直接的后果就是公众环保观点模糊化,最终使得美国环境政策和法律难以深化.     

村级换届选举中不稳定因素的成因及对策

一、不稳定因素的主要表现形式 (一)宗族、房头形成的小范围、小势力之间的矛盾纠纷处于这种小范围、小势力内的选民,以维系家庭权威、姓氏地位、利益归属为目的,拉帮结派,明争暗斗,分庭对抗,你选你的推举者,我     

入世与国内券商的国际化

中国的股票市场经历了近几年的牛市以后，出现了大幅度的下调状况(尽管国民经济的增长势头仍很强劲)。沪指从2001年6月的最高点2245．4点，暴跌至10月的1514点。在近三个月的时间内，股指涨跌幅度接近一千点，近万亿元的资金被蒸发，导致了财富的负效应，使人们开始思考并对证券市场资源配置的有效性提出了置疑。同时，     

多重PCR检测FFv三个基因座在景颇族人群中的遗传多态性

短串联重复序列（STR）是由几个碱基对作为核心单位串联重复形成的一类DNA序列,作者将3个STR基因座在同一反应体系中进行互不干扰的复合扩增,采用高分辨率的聚丙烯酰胺凝胶电泳分离、银染法显影技术,对云南省景颇族的F13A01,FESFPS和vWA等3个基因座等位基因的基因频率进行了调查,获得了满意的结果,显示了广阔的应用前景。F13A01基因座观察到8个等位基因、13个基因型;FESFPS基因应观察到7个等位基因、18个基因型;vWA基因应观察到7个等位基因、21个基因型。